I found this site a while back - basically it will ask you a bunch of questions on your usage of your PC, and will came out with a list of recommended distros, and a list of reasons why YOU could like or not like it.
https://distrochooser.de/
There are some similar sites to this one, but since I'm not familiar with them, I won't post them. They are simply DuckDuckGo-able though.
I'm hosting mine on an old i5-750 (yeah, not 7500...), with an GeForce gt640 and 4GB of ram... Never encountered any problems whatsoever.
I would take a hot take and say, any old pc that you can find will do just fine.